On Fri, Mar 27, 2020 at 3:41 PM <eevans@digitaldatatechs.com> wrote:

You need to have a separate gluster network as per documentation.

Eric Evans

Yes Eric, indeed. And as you see from my post, the storage network has been specified during setup. And indeed it is the one (even if only with one host) used by Gluster. But apparently oVirt didn't setup e storage network for it as I expected.... So the 3 questions are: 1) is this behavior expected? 2) if so, do you think a useful thing to integrate storage network configuration during the setup phase if specified by the user? 3) what is the expected flow to do now to configure the storage network? is downtime expected to do so? Thanks Gianluca

This is another good article but not official documentation. https://blogs.ovirt.org/2017/04/up-and-running-with-ovirt-4-1-and-gluster-st... Eric Evans Digital Data Services LLC. 304.660.9080 From: Gianluca Cecchi <gianluca.cecchi@gmail.com> Sent: Friday, March 27, 2020 12:23 PM To: eevans@digitaldatatechs.com Cc: users <users@ovirt.org> Subject: [ovirt-users] Re: Doubts related to single HCI and storage network On Fri, Mar 27, 2020 at 3:41 PM <eevans@digitaldatatechs.com <mailto:eevans@digitaldatatechs.com> > wrote: You need to have a separate gluster network as per documentation. Eric Evans Yes Eric, indeed. And as you see from my post, the storage network has been specified during setup. And indeed it is the one (even if only with one host) used by Gluster. But apparently oVirt didn't setup e storage network for it as I expected.... So the 3 questions are: 1) is this behavior expected? 2) if so, do you think a useful thing to integrate storage network configuration during the setup phase if specified by the user? 3) what is the expected flow to do now to configure the storage network? is downtime expected to do so? Thanks Gianluca

On Fri, Mar 27, 2020 at 6:49 PM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:

Hey Gianluca,

If there is an option to define the Gluster network during deployment - it should work like that.

Can you go to the UI -> your cluster -> and check the network is there. Maybe it was created but not marked as storage network.

Best Regards, Strahil Nikolov

Hi Strahil, there is no option to define a "Gluster network" logical network during HCI deployment; there is only an indirect way because you specify IP/hostname of the network to use for Gluster. Following "Deploying Red Hat Hyperconverged Infrastructure for Virtualization on a single node" doc: https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrast... at the beginning when you install the host from the node iso you specify its hostname/IP --> in my case ovirt.mydomain Then here below In the first window you choose the "Start" button on the right for "Hyperconverged": https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infrast... then you select the right button "Run Gluster Wizard For Single Node" and, as the manual says, in the window titled "Gluster Deployment" : Specify the back-end FQDN on the storage network of the hyperconverged host --> in my case used ovirtst.mydomain.storage You go through and indeed oVirt is using for Gluster the network you specified above, but in Compute -> Clusters -> Default -> Logical Networks -> Manage Networks no logical network has been created and then assigned to the column named "Gluster Network" This is what I mean and the reason I think I get the WARNING in engine.log of my first post: I would have expected setup to create a logical network (eg "Gluster") and automatically assign it to the "Gluster Network" type. Something similar to what is already automatically done for the ovirtmgmt logical network assignment, as a logic. Anyway, following also what described thorugh here: http://www.chrisj.cloud/?q=node/8 I made these manual steps without having any disruption inside my running VMs: 1) Compute -> Clusters -> Default -> Logical Networks -> Add Network Name: Gluster VM network --> unchecked MTU --> Custom 9000 (as this is the MTU used and already in place on the host) In the left side pane selected "Cluster" and uncheck "required" because not yet assigned to host and to avoid disruption 2) Compute -> Clusters -> Default -> Logical Networks -> Manage Networks Select the "Gluster" logical network as "Gluster Network" type 3) Hosts --> My host --> Network Interfaces --> Setup host networks Drag and drop the "Gluster" network at right on to the network interface at left, already configured with the static ip related to storage network used during setup OK button 4) Eventually mark now the "Gluster" logical network as a required one for the cluster Gianluca